10 rules for using the apostrophe

There are definite rules for its use, but many writers use commas subjectively, leading to disagreement (and acrimony) whenever writers or editors discuss this modest punctuation mark.

This week, I’m tackling another punctuation mark—the apostrophe. The rules for the apostrophe are much more definite, but they are frequently misapplied. So misunderstanding often ensues when it comes to the apostrophe.